As Green Building Assessment methods like BREEAM and LEED gain importance, knowledge of the solar and luminous characteristics of sunscreen fabrics becomes imperative. All figures provided on this website are measured and calculated by accredited laboratories according to the latest European standards and will tell you exactly how efficient our fabrics are.

Solar and luminous characteristics

EN 410 (1998): Defines how to make spectral measurements on fabrics and how to calculate the solar transmittance (Ts) and solar reflectance (Rs) values. The solar transmittance and reflectance values are required for the calculation of the solar factor "g".

g-value calculation

EN 13363-1+A1 (2007): This standard specifies the simplified method for the calculation of the solar factor "g".The solar factor or g-value is the total solar energy transmittance whereas "gtot" is the solar factor of the combination of glazing and solar protection device.

Visual and thermal comfort

EN 14501 (2005): Performance characteristics and classification of a solar protection device or roller shutter with regard to visual and thermal comfort. The standard defines the technical characteristics of 4 typical glazings (A,B,C,D) for the calculation of the "gtot" value and classifies the thermal and visual comfort.

Glass types

Influence on thermal and visual comfort

Classes overview

Total solar energy transmittance gtot - Classification

Classes gtot

Glare control - Classification

Classes glare control

Visual contact with the outside - Classification

Classes contact outside

Night Privacy - Classification

Classes Privacy